/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.heron.scheduler.yarn;

import org.junit.Test;
import org.mockito.InOrder;
import org.mockito.Mockito;

import org.apache.heron.spi.packing.PackingPlan;
import org.apache.heron.spi.scheduler.IScheduler;

import static org.mockito.Mockito.verify;

public class YarnSchedulerTest {
  @Test
  public void delegatesToDriverOnSchedule() throws Exception {
    HeronMasterDriver mockHeronDriver = Mockito.mock(HeronMasterDriver.class);
    HeronMasterDriverProvider.setInstance(mockHeronDriver);
    Mockito.doNothing().when(mockHeronDriver).launchTMaster();

    IScheduler scheduler = new YarnScheduler();
    PackingPlan mockPacking = Mockito.mock(PackingPlan.class);
    scheduler.onSchedule(mockPacking);

    InOrder invocationOrder = Mockito.inOrder(mockHeronDriver);
    invocationOrder.verify(mockHeronDriver).scheduleHeronWorkers(mockPacking);
    invocationOrder.verify(mockHeronDriver).launchTMaster();
  }

  @Test
  public void delegatesToDriverOnKill() {
    HeronMasterDriver mockHeronDriver = Mockito.mock(HeronMasterDriver.class);
    HeronMasterDriverProvider.setInstance(mockHeronDriver);

    IScheduler scheduler = new YarnScheduler();
    scheduler.onKill(null);

    verify(mockHeronDriver).killTopology();
  }
}
